#app{
    width: 100%;
    height: 100%;
}
.no-select {
    user-select: none; /* 不允许选中 */
    -moz-user-select: none; /* Firefox */
    -webkit-user-select: none; /* Safari */
    -ms-user-select: none; /* Internet Explorer/Edge */
}

/* 隐藏滚动条 */
.element {
    overflow: scroll;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.element::-webkit-scrollbar {
    display: none;
}
